Writing device with multiple writing elements

Coating implements with material supply – Plural tools including projectable and retractable tool

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Details

401 30, 401109, B43K 2714, B43K 2702, B43K 2414

Patent

active

047385570

ABSTRACT:
A multi-purpose writing device comprising plural writing elements, at least one of which is an automatic pencil that can be extended, can be extended to and retracted from and between the writing position and the housed position alternately by rotating a cylindrical cam. The cylindrical cam is sectioned diagonally with respect to the axis at its lower end to form a cam surface and is also provided with a translation cam inside thereof to provide a two-stage cam mechanism. Further, a flat portion is made at the top and the bottom of the cam surface provided at the lower end of the cylinder member. A slider which connects with each writing element is stepped to provide slide projections while slide against the cam surfaces. The axial movement of the cylindrical cam is transmitted to the automatic pencil element by the engagement of the translation cam with the slide projections to cause the lead of the pencil to be discharged.

REFERENCES:
patent: 2826173 (1958-03-01), Gossweiler et al.
patent: 3898008 (1975-08-01), Ganz
patent: 4227822 (1980-10-01), Kokubu
patent: 4283151 (1981-08-01), Sekiguchi
patent: 4290707 (1981-09-01), Ariga
patent: 4359291 (1982-11-01), Lum

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